Mellow's journey takes place in a world where exploration can reveal something unexpected around almost every corner. Players can investigate rooms, interact with characters, and examine objects to gather information. Some clues may appear insignificant at first but become valuable after another part of the story is discovered. Endacopia uses this interconnected approach to create puzzles based on exploration, dialogue, and item management. Players can collect objects and determine how they might help with different obstacles, sometimes requiring creative combinations or a return to a previous location. Mini-games introduce additional forms of interaction and prevent the adventure from relying entirely on traditional puzzles. The central objective is to help Mellow leave his uncomfortable circumstances while making sense of the strange world he encounters. Every solved problem can open another step in his journey and reveal more about his surroundings.